Little refactoring on Dockerfile and pom.xml

Moving FeaturesRepositories ENV Variable from Dockerfile to pom.xml
Moving odl user creation to base image

Issue-ID: CCSDK-3358
Signed-off-by: Singal, Kapil (ks220y) <ks220y@att.com>
Change-Id: I636e54e1849832faef22081a4a28feb6a2325c22
4 files changed